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NEET Sample Paper NEET Sample Test Paper-38

  • question_answer
    The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr >HCl. What explains the higher boiling point of hydrogen fluoride?

    A)  The bond energy of HF molecules is greater than other hydrogen halides

    B)  The effect of nuclear shielding is much reduced in fluorine which polarizes the HF molecule

    C)  The electronegativity of fluorine is much higher than for other elements in the group.

    D)  There is strong hydrogen bonding between HF molecules

    Correct Answer: D

    Solution :

     Due to strong H-bonding in HF molecule, boiling point is highest for HF HF > HI > HBr > HI


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